Brake head overturn-proof structure of tread brake of rail vehicle

A technology for tread brakes and rail vehicles, which is applied to brakes with brake parts, railway braking systems, railway car body parts, etc. It can solve the problem of large gap between the brake shoe holder and the adjustment head, easy slipping of friction blocks, and time-consuming and laborious maintenance. And other issues

Inactive Publication Date: 2015-04-01
NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The anti-sinking head mechanism of the brake shoe holder above has a simple structure, but the gap between the brake shoe holder and the adjusting head is relatively large. When installing the disc spring and the friction block, the friction block is easy to slip, and the maintenance is time-consuming and laborious.

Method used

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  • Brake head overturn-proof structure of tread brake of rail vehicle
  • Brake head overturn-proof structure of tread brake of rail vehicle

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0024] Such as figure 1 , figure 2 As shown, the anti-turnover structure of the brake shoe holder of the tread brake of the rail vehicle in this embodiment includes the brake shoe holder 1 and the dovetail groove seat 12 hingedly fixed on the lower end of the boom 7, the screw head 9 fixed on the front end of the brake screw rod, and the brake shoe The support 1 and the dovetail seat 12 share a hinge point 8 . Its dovetail groove seat 12 rears are provided with vertical dovetail groove 11 (also can replace with T-shaped groove), screw mandrel head 9 has the slide block 10 that inserts this dovetail groove 11, and both can slide relatively in vertical directi...

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Abstract

The invention relates to a brake head overturn-proof structure of a tread brake of a rail vehicle. The brake head overturn-proof structure of the tread brake of the rail vehicle comprises a brake head and a dovetail groove base which are hinged and fixed on the lower end of a hanging rod, and a lead screw head which is fixed on the front end of a brake lead screw. The brake head comprises a left plate and a right plate, and the left plate and the right plate are respectively provided with column grooves located under the hinging point of the brake head; the dovetail groove base is provided with a rear dovetail groove and a lower clamping plate inserted between two column grooves of the brake head, and the lead screw head is provided with a slider matched with the dovetail groove; damping components are installed in two column grooves of the left plate and the right plate, and used for applying the clamping force to the clamping plate, and preventing the brake head from overturning. A disc spring is pressed by a plug, and a friction block is pressed by the disc spring. In the process of braking, the clamping plate is forwards pushed with the dovetail groove base, the friction force between the friction block and the clamping plate produces the friction moment relative to the hinging center of the brake head, so the brake head is prevented from overturning because of the gravity of the brake head.

Description

technical field [0001] The invention relates to a brake shoe support of a tread brake of a rail transit vehicle, in particular to an anti-sinking mechanism of the brake shoe support, and belongs to the technical field of railway vehicle braking systems. Background technique [0002] When the tread brake of a rail transit vehicle is braked, the screw rod and the brake shoe support mechanism are pushed out. The center of gravity of the brake shoe support mechanism is not at the hinge center of the splint and the brake shoe support. The center of gravity of the brake shoe support forms a moment relative to the hinge center, which is easy Cause the brake shoe holder to turn over due to gravity. [0003] It was found by the inspection institute that the Chinese invention patent application CN 103693069 A discloses a tread brake device, which uses a damping assembly installed on the brake shoe holder to prevent countersunk. Its damping assembly includes a gland screwed into the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H1/00
CPCB61H1/00
Inventor 庞淑娟张东升朱新宇藏传相余毅权虞晓峰田启园
Owner NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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